Feed mechanism for ore-crushers



(No Model.) T. A. BLAKE.

FEED MEGHANISM FOR ORB GRUSHERS. No. 277,666. Patented May 15,1883.

re. warms. Pmmum w. \Valhingon. n. a

UNITED STATES PATENT OFFICE.

THEODORE A. BLAKE, OF NEW HAVEN, CONNECTICUT.

FEED MECHANISM FOR ORE-CRUSHERS.

SPECIFICATION forming part of Letters Patent No. 277,666, dated May 15,1883.

Application filed March 16, 1883. (No model.)

To all whom it may concern:

Be it known that I, THEODORE A. BLAKE, of New Haven, in the county ofNew Haven and State of Connecticut, have invented a new 1m provement inFeed Mechanisms for Ore- Crushers; and I do hereby declare thefollowing, when taken in connection with the accompanying drawing andthe letters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said drawing constitutes part of thisspecification, and represents a vertical central section through thehopper and feed-spout.

This invention relates to a device for feeding broken ore to crushers orother grinding devices, the object being to produce a regulated feed, bywhich the weight of the material in the hopper shall be to aconsiderable extent taken from the delivering or regulating spout; andit consists in a hopper having horizontally-inclined partitionsextending from opposite sides, with a passage between the partitions,said partitions serving to support the weight, combined with anautomatically-vibrating delivery-trough, upon which the ore will bedelivered, the said delivery-trough being made adjustable as toinclination, as more fully hereinafter described and claimed.

A represents the hopper, which maybe of" any desirable form, preferablyso that ore may be dumped into it at the top. Near the bottom is ahorizontal inclined partition, on, extending from one side, say, to alittle beyond the centcr. Below this and from the opposite side is alike partition, I), reversely inclined, so -that ore introduced fromabove will fall upon said partitions and must pass out be-' tioii'sforming a support for the body of the tends down to the spout, and isattached to the spout by an adjustable device, (here represented as nutsh, screwed onto the end of the rod upon the under side of the spout.)

Revolution is imparted to the crank-wheel C by the application of powerthereto in any known or convenient manner. Such revolution of the crankimparts to the spout B an up-and-down vibratory movement, as indicatedin broken lines. The ore is delivered onto the feedspout as it fallsfrom the lower partition, and because of the shaking or vibratorymovement of the spout it passes down over the spout and is delivered tothe grinding apparatus. The ore being supported by the partitions it babove, the mass of ore in the hopper does not require to be lifted bythe spout B, as it would do were the partitions a b omitted, and thus afreedom is given to the passage of the ore and little power required toimpart the requisite vibration to the spout.

To adjust the inclination of the spout it is only necessary to run theend up or down on the rod f, accordingly as inclination is required tobe less or greater.

The crank-pin is made adjustable by making a diametrical slide, i,across the face of the crank-wheel C,and by fixing the crank-pin l tothat slide the latter will be adjustable diametrically, so as ,to besecured by a setscrew, m, or otherwise, to bring the crank-pin ITHEODORE A. BLAKE.

Witnesses:

J 0s. 0. EARLE, J. H. SHUMWAY.

